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Tps Help

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Old Jun 16, 2011 | 04:59 PM
  #1  
Rcaldw9's Avatar
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From: Houston, Texas
Car: 1987 Red GTA Trans Am
Engine: 350 TPI
Tps Help

I can't get any reading at all off a brand new TPS. It is from Autozone but I should still be able to get a reading right? Can someone help me and walk me through these steps of setting it please?
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Old Jun 16, 2011 | 05:08 PM
  #2  
Base91's Avatar
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From: Georgetown TX
Car: Base 91 'bird
Engine: 3.1 v6
Transmission: 4L60
Axle/Gears: 9-bolt 3.27 & PBR
Re: Tps Help

What are you not getting? Does it have the reference voltage? is it varying the signal voltage?
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Old Jun 16, 2011 | 05:12 PM
  #3  
Rcaldw9's Avatar
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From: Houston, Texas
Car: 1987 Red GTA Trans Am
Engine: 350 TPI
Re: Tps Help

No voltage whatsoever. 0.00
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Old Jun 16, 2011 | 05:55 PM
  #4  
Base91's Avatar
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From: Georgetown TX
Car: Base 91 'bird
Engine: 3.1 v6
Transmission: 4L60
Axle/Gears: 9-bolt 3.27 & PBR
Re: Tps Help

I don't remember which wire is which off hand (do you have a wiring diag.?) but one must have 5 volts going into the TPS and one output will have a variable voltage based on throttle position. But you've got to start with the 5 volts in. Track that down first.
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Old Jun 16, 2011 | 06:24 PM
  #5  
Rcaldw9's Avatar
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Posts: 20
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From: Houston, Texas
Car: 1987 Red GTA Trans Am
Engine: 350 TPI
Re: Tps Help

Alright well I put my meter in the plug that plugs up to the tps. Negative one in the middle and the positive to the right and got 0.05. Then I put the positive in the left one and got 0.00
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Old Jun 16, 2011 | 09:18 PM
  #6  
megan.artiaco's Avatar
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Joined: May 2011
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From: Williamston, South Carolina
Car: 1989 IROC-Z
Engine: 5.7L V8 350 TPI
Transmission: Automatic
Re: Tps Help

Put the positive in/on the middle wire and the negative on a ground, make sure your key is turned to the on position, but don't start it. hth.

I just replaced and set the TPS in mine yesterday, it was a PITA, tried a ,million different ways to get my meter to read. I gave up on a jumper wire and just plugged it in and stuck my probe in with the middle wire, and voila!
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